18543512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 39580800

約数和(自身を除く): 21037288

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 61, 74, 79, 104, 122, 148, 158, 244, 296, 316, 481, 488, 632, 793, 962, 1027, 1586, 1924, 2054, 2257, 2923, 3172, 3848, 4108, 4514, 4819, 5846, 6344, 8216, 9028, 9638, 11692, 18056, 19276, 23384, 29341, 37999, 38552, 58682, 62647, 75998, 117364, 125294, 151996, 178303, 234728, 250588, 303992, 356606, 501176, 713212, 1426424, 2317939, 4635878, 9271756, 18543512]

約数ペア:

[(1, 18543512), (2, 9271756), (4, 4635878), (8, 2317939), (13, 1426424), (26, 713212), (37, 501176), (52, 356606), (61, 303992), (74, 250588), (79, 234728), (104, 178303), (122, 151996), (148, 125294), (158, 117364), (244, 75998), (296, 62647), (316, 58682), (481, 38552), (488, 37999), (632, 29341), (793, 23384), (962, 19276), (1027, 18056), (1586, 11692), (1924, 9638), (2054, 9028), (2257, 8216), (2923, 6344), (3172, 5846), (3848, 4819), (4108, 4514)]